1352 lines
33 KiB
C
1352 lines
33 KiB
C
/* $KAME: sctp6_usrreq.c,v 1.38 2005/08/24 08:08:56 suz Exp $ */
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/* $NetBSD: sctp6_usrreq.c,v 1.7 2016/07/15 07:40:09 ozaki-r Exp $ */
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/*
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* Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Cisco Systems, Inc.
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* 4. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sctp6_usrreq.c,v 1.7 2016/07/15 07:40:09 ozaki-r Exp $");
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#ifdef _KERNEL_OPT
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#include "opt_inet.h"
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#include "opt_ipsec.h"
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#include "opt_sctp.h"
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#endif /* _KERNEL_OPT */
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/domain.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/malloc.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <sys/errno.h>
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#include <sys/stat.h>
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#include <sys/systm.h>
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#include <sys/syslog.h>
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#include <sys/proc.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/in_pcb.h>
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#include <netinet/in_var.h>
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#include <netinet/ip_var.h>
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#include <netinet/sctp_pcb.h>
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#include <netinet/sctp_header.h>
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#include <netinet/sctp_var.h>
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#include <netinet/sctputil.h>
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#include <netinet/sctp_output.h>
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#include <netinet/sctp_input.h>
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#include <netinet/sctp_asconf.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/scope6_var.h>
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#include <netinet/ip6.h>
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#include <netinet6/in6_pcb.h>
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#include <netinet/icmp6.h>
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#include <netinet6/sctp6_var.h>
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#include <netinet6/ip6protosw.h>
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#include <netinet6/nd6.h>
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#ifdef IPSEC
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#include <netipsec/ipsec.h>
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#include <netipsec/ipsec6.h>
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#endif /*IPSEC*/
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#if defined(NFAITH) && NFAITH > 0
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#include <net/if_faith.h>
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#endif
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#include <net/net_osdep.h>
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extern struct protosw inetsw[];
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#if defined(HAVE_NRL_INPCB) || defined(__FreeBSD__)
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#ifndef in6pcb
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#define in6pcb inpcb
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#endif
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#ifndef sotoin6pcb
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#define sotoin6pcb sotoinpcb
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#endif
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#endif
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#ifdef SCTP_DEBUG
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extern u_int32_t sctp_debug_on;
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#endif
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static int sctp6_detach(struct socket *so);
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extern int sctp_no_csum_on_loopback;
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int
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sctp6_input(struct mbuf **mp, int *offp, int proto)
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{
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struct mbuf *m = *mp;
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struct ip6_hdr *ip6;
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struct sctphdr *sh;
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struct sctp_inpcb *in6p = NULL;
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struct sctp_nets *net;
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int refcount_up = 0;
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u_int32_t check, calc_check;
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struct inpcb *in6p_ip;
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struct sctp_chunkhdr *ch;
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struct mbuf *opts = NULL;
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int length, mlen, offset, iphlen;
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u_int8_t ecn_bits;
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struct sctp_tcb *stcb = NULL;
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int off = *offp;
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int s;
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ip6 = mtod(m, struct ip6_hdr *);
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/* Ensure that (sctphdr + sctp_chunkhdr) in a row. */
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IP6_EXTHDR_GET(sh, struct sctphdr *, m, off, sizeof(*sh) + sizeof(*ch));
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if (sh == NULL) {
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sctp_pegs[SCTP_HDR_DROPS]++;
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return IPPROTO_DONE;
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}
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ch = (struct sctp_chunkhdr *)((vaddr_t)sh + sizeof(struct sctphdr));
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iphlen = off;
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offset = iphlen + sizeof(*sh) + sizeof(*ch);
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#if defined(NFAITH) && NFAITH > 0
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if (faithprefix(&ip6->ip6_dst))
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goto bad;
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#endif /* NFAITH defined and > 0 */
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sctp_pegs[SCTP_INPKTS]++;
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#ifdef SCTP_DEBUG
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if (sctp_debug_on & SCTP_DEBUG_INPUT1) {
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printf("V6 input gets a packet iphlen:%d pktlen:%d\n", iphlen, m->m_pkthdr.len);
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}
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#endif
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if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
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/* No multi-cast support in SCTP */
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sctp_pegs[SCTP_IN_MCAST]++;
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goto bad;
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}
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/* destination port of 0 is illegal, based on RFC2960. */
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if (sh->dest_port == 0)
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goto bad;
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if ((sctp_no_csum_on_loopback == 0) ||
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(m_get_rcvif_NOMPSAFE(m) == NULL) ||
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(m_get_rcvif_NOMPSAFE(m)->if_type != IFT_LOOP)) {
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/* we do NOT validate things from the loopback if the
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* sysctl is set to 1.
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*/
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check = sh->checksum; /* save incoming checksum */
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if ((check == 0) && (sctp_no_csum_on_loopback)) {
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/* special hook for where we got a local address
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* somehow routed across a non IFT_LOOP type interface
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*/
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if (IN6_ARE_ADDR_EQUAL(&ip6->ip6_src, &ip6->ip6_dst))
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goto sctp_skip_csum;
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}
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sh->checksum = 0; /* prepare for calc */
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calc_check = sctp_calculate_sum(m, &mlen, iphlen);
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if (calc_check != check) {
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#ifdef SCTP_DEBUG
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if (sctp_debug_on & SCTP_DEBUG_INPUT1) {
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printf("Bad CSUM on SCTP packet calc_check:%x check:%x m:%p mlen:%d iphlen:%d\n",
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calc_check, check, m,
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mlen, iphlen);
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}
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#endif
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stcb = sctp_findassociation_addr(m, iphlen, offset - sizeof(*ch),
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sh, ch, &in6p, &net);
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/* in6p's ref-count increased && stcb locked */
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if ((in6p) && (stcb)) {
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sctp_send_packet_dropped(stcb, net, m, iphlen, 1);
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sctp_chunk_output((struct sctp_inpcb *)in6p, stcb, 2);
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} else if ((in6p != NULL) && (stcb == NULL)) {
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refcount_up = 1;
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}
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sctp_pegs[SCTP_BAD_CSUM]++;
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goto bad;
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}
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sh->checksum = calc_check;
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} else {
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sctp_skip_csum:
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mlen = m->m_pkthdr.len;
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}
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net = NULL;
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/*
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* Locate pcb and tcb for datagram
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* sctp_findassociation_addr() wants IP/SCTP/first chunk header...
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*/
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#ifdef SCTP_DEBUG
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if (sctp_debug_on & SCTP_DEBUG_INPUT1) {
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printf("V6 Find the association\n");
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}
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#endif
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stcb = sctp_findassociation_addr(m, iphlen, offset - sizeof(*ch),
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sh, ch, &in6p, &net);
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/* in6p's ref-count increased */
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if (in6p == NULL) {
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struct sctp_init_chunk *init_chk, chunk_buf;
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sctp_pegs[SCTP_NOPORTS]++;
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if (ch->chunk_type == SCTP_INITIATION) {
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/* we do a trick here to get the INIT tag,
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* dig in and get the tag from the INIT and
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* put it in the common header.
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*/
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init_chk = (struct sctp_init_chunk *)sctp_m_getptr(m,
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iphlen + sizeof(*sh), sizeof(*init_chk),
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(u_int8_t *)&chunk_buf);
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sh->v_tag = init_chk->init.initiate_tag;
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}
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sctp_send_abort(m, iphlen, sh, 0, NULL);
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goto bad;
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} else if (stcb == NULL) {
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refcount_up = 1;
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}
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in6p_ip = (struct inpcb *)in6p;
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#ifdef IPSEC
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/*
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* Check AH/ESP integrity.
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*/
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if (ipsec_used && ipsec6_in_reject_so(m, in6p->sctp_socket)) {
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/* XXX */
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#if 0
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/* FIX ME: need to find right stat */
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ipsec6stat.in_polvio++;
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#endif
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goto bad;
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}
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#endif /*IPSEC*/
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/*
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* Construct sockaddr format source address.
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* Stuff source address and datagram in user buffer.
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*/
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if ((in6p->ip_inp.inp.inp_flags & INP_CONTROLOPTS)
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#ifndef __OpenBSD__
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|| (in6p->sctp_socket->so_options & SO_TIMESTAMP)
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#endif
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) {
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#if defined(__FreeBSD__) || defined(__APPLE__)
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#if (defined(SCTP_BASE_FREEBSD) && __FreeBSD_version < 501113) || defined(__APPLE__)
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ip6_savecontrol(in6p_ip, &opts, ip6, m);
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#elif __FreeBSD_version >= 440000 || (defined(SCTP_BASE_FREEBSD) && __FreeBSD_version >= 501113)
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ip6_savecontrol(in6p_ip, m, &opts);
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#else
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ip6_savecontrol(in6p_ip, m, &opts, NULL);
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#endif
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#elif defined(__NetBSD__)
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ip6_savecontrol((struct in6pcb *)in6p_ip, &opts, ip6, m);
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#else
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ip6_savecontrol((struct in6pcb *)in6p_ip, m, &opts);
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#endif
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}
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/*
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* CONTROL chunk processing
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*/
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length = ntohs(ip6->ip6_plen) + iphlen;
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offset -= sizeof(*ch);
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ecn_bits = ((ntohl(ip6->ip6_flow) >> 20) & 0x000000ff);
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s = splsoftnet();
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(void)sctp_common_input_processing(&m, iphlen, offset, length, sh, ch,
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in6p, stcb, net, ecn_bits);
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/* inp's ref-count reduced && stcb unlocked */
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splx(s);
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/* XXX this stuff below gets moved to appropriate parts later... */
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if (m)
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m_freem(m);
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if (opts)
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m_freem(opts);
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if ((in6p) && refcount_up){
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/* reduce ref-count */
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SCTP_INP_WLOCK(in6p);
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SCTP_INP_DECR_REF(in6p);
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SCTP_INP_WUNLOCK(in6p);
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}
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return IPPROTO_DONE;
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bad:
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if (stcb) {
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SCTP_TCB_UNLOCK(stcb);
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}
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if ((in6p) && refcount_up){
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/* reduce ref-count */
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SCTP_INP_WLOCK(in6p);
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SCTP_INP_DECR_REF(in6p);
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SCTP_INP_WUNLOCK(in6p);
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}
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if (m) {
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m_freem(m);
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}
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if (opts) {
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m_freem(opts);
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}
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return IPPROTO_DONE;
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}
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static void
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sctp6_notify_mbuf(struct sctp_inpcb *inp,
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struct icmp6_hdr *icmp6,
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struct sctphdr *sh,
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struct sctp_tcb *stcb,
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struct sctp_nets *net)
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{
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unsigned int nxtsz;
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if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
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(icmp6 == NULL) || (sh == NULL)) {
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goto out;
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}
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/* First do we even look at it? */
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if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag))
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goto out;
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if (icmp6->icmp6_type != ICMP6_PACKET_TOO_BIG) {
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/* not PACKET TO BIG */
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goto out;
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}
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/*
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* ok we need to look closely. We could even get smarter and
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* look at anyone that we sent to in case we get a different
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* ICMP that tells us there is no way to reach a host, but for
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* this impl, all we care about is MTU discovery.
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*/
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nxtsz = ntohl(icmp6->icmp6_mtu);
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/* Stop any PMTU timer */
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sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL);
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/* Adjust destination size limit */
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if (net->mtu > nxtsz) {
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net->mtu = nxtsz;
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}
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/* now what about the ep? */
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if (stcb->asoc.smallest_mtu > nxtsz) {
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struct sctp_tmit_chunk *chk;
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struct sctp_stream_out *strm;
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/* Adjust that too */
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stcb->asoc.smallest_mtu = nxtsz;
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/* now off to subtract IP_DF flag if needed */
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TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
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if ((chk->send_size+IP_HDR_SIZE) > nxtsz) {
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chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
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}
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}
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TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
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if ((chk->send_size+IP_HDR_SIZE) > nxtsz) {
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/*
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* For this guy we also mark for immediate
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* resend since we sent to big of chunk
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*/
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chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
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if (chk->sent != SCTP_DATAGRAM_RESEND)
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stcb->asoc.sent_queue_retran_cnt++;
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chk->sent = SCTP_DATAGRAM_RESEND;
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chk->rec.data.doing_fast_retransmit = 0;
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chk->sent = SCTP_DATAGRAM_RESEND;
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/* Clear any time so NO RTT is being done */
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chk->sent_rcv_time.tv_sec = 0;
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chk->sent_rcv_time.tv_usec = 0;
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stcb->asoc.total_flight -= chk->send_size;
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net->flight_size -= chk->send_size;
|
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}
|
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}
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TAILQ_FOREACH(strm, &stcb->asoc.out_wheel, next_spoke) {
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TAILQ_FOREACH(chk, &strm->outqueue, sctp_next) {
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if ((chk->send_size+IP_HDR_SIZE) > nxtsz) {
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chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
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}
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}
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}
|
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}
|
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sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL);
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out:
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if (inp) {
|
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/* reduce inp's ref-count */
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SCTP_INP_WLOCK(inp);
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SCTP_INP_DECR_REF(inp);
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SCTP_INP_WUNLOCK(inp);
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}
|
|
if (stcb) {
|
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SCTP_TCB_UNLOCK(stcb);
|
|
}
|
|
}
|
|
|
|
|
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void *
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sctp6_ctlinput(int cmd, const struct sockaddr *pktdst, void *d)
|
|
{
|
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struct sctphdr sh;
|
|
struct ip6ctlparam *ip6cp = NULL;
|
|
int s, cm;
|
|
|
|
if (pktdst->sa_family != AF_INET6 ||
|
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pktdst->sa_len != sizeof(struct sockaddr_in6))
|
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return NULL;
|
|
|
|
if ((unsigned)cmd >= PRC_NCMDS)
|
|
return NULL;
|
|
if (PRC_IS_REDIRECT(cmd)) {
|
|
d = NULL;
|
|
} else if (inet6ctlerrmap[cmd] == 0) {
|
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return NULL;
|
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}
|
|
|
|
/* if the parameter is from icmp6, decode it. */
|
|
if (d != NULL) {
|
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ip6cp = (struct ip6ctlparam *)d;
|
|
} else {
|
|
ip6cp = (struct ip6ctlparam *)NULL;
|
|
}
|
|
|
|
if (ip6cp) {
|
|
/*
|
|
* XXX: We assume that when IPV6 is non NULL,
|
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* M and OFF are valid.
|
|
*/
|
|
/* check if we can safely examine src and dst ports */
|
|
struct sctp_inpcb *inp;
|
|
struct sctp_tcb *stcb;
|
|
struct sctp_nets *net;
|
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struct sockaddr_in6 final;
|
|
|
|
if (ip6cp->ip6c_m == NULL ||
|
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(size_t)ip6cp->ip6c_m->m_pkthdr.len < (ip6cp->ip6c_off + sizeof(sh)))
|
|
return NULL;
|
|
|
|
memset(&sh, 0, sizeof(sh));
|
|
memset(&final, 0, sizeof(final));
|
|
inp = NULL;
|
|
net = NULL;
|
|
m_copydata(ip6cp->ip6c_m, ip6cp->ip6c_off, sizeof(sh),
|
|
(void *)&sh);
|
|
ip6cp->ip6c_src->sin6_port = sh.src_port;
|
|
final.sin6_len = sizeof(final);
|
|
final.sin6_family = AF_INET6;
|
|
final.sin6_addr = ((const struct sockaddr_in6 *)pktdst)->sin6_addr;
|
|
final.sin6_port = sh.dest_port;
|
|
s = splsoftnet();
|
|
stcb = sctp_findassociation_addr_sa(sin6tosa(ip6cp->ip6c_src),
|
|
sin6tosa(&final),
|
|
&inp, &net, 1);
|
|
/* inp's ref-count increased && stcb locked */
|
|
if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
|
|
if (cmd == PRC_MSGSIZE) {
|
|
sctp6_notify_mbuf(inp,
|
|
ip6cp->ip6c_icmp6,
|
|
&sh,
|
|
stcb,
|
|
net);
|
|
/* inp's ref-count reduced && stcb unlocked */
|
|
} else {
|
|
if (cmd == PRC_HOSTDEAD) {
|
|
cm = EHOSTUNREACH;
|
|
} else {
|
|
cm = inet6ctlerrmap[cmd];
|
|
}
|
|
sctp_notify(inp, cm, &sh, sin6tosa(&final),
|
|
stcb, net);
|
|
/* inp's ref-count reduced && stcb unlocked */
|
|
}
|
|
} else {
|
|
if (PRC_IS_REDIRECT(cmd) && inp) {
|
|
in6_rtchange((struct in6pcb *)inp,
|
|
inet6ctlerrmap[cmd]);
|
|
}
|
|
if (inp) {
|
|
/* reduce inp's ref-count */
|
|
SCTP_INP_WLOCK(inp);
|
|
SCTP_INP_DECR_REF(inp);
|
|
SCTP_INP_WUNLOCK(inp);
|
|
}
|
|
if (stcb) {
|
|
SCTP_TCB_UNLOCK(stcb);
|
|
}
|
|
}
|
|
splx(s);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* this routine can probably be collasped into the one in sctp_userreq.c
|
|
* since they do the same thing and now we lookup with a sockaddr
|
|
*/
|
|
#ifdef __FreeBSD__
|
|
static int
|
|
sctp6_getcred(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct sockaddr_in6 addrs[2];
|
|
struct sctp_inpcb *inp;
|
|
struct sctp_nets *net;
|
|
struct sctp_tcb *stcb;
|
|
int error, s;
|
|
|
|
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
|
|
error = suser(req->td);
|
|
#else
|
|
error = suser(req->p);
|
|
#endif
|
|
if (error)
|
|
return (error);
|
|
|
|
if (req->newlen != sizeof(addrs))
|
|
return (EINVAL);
|
|
if (req->oldlen != sizeof(struct ucred))
|
|
return (EINVAL);
|
|
error = SYSCTL_IN(req, addrs, sizeof(addrs));
|
|
if (error)
|
|
return (error);
|
|
s = splsoftnet();
|
|
|
|
stcb = sctp_findassociation_addr_sa(sin6tosa(&addrs[0]),
|
|
sin6tosa(&addrs[1]),
|
|
&inp, &net, 1);
|
|
if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
|
|
error = ENOENT;
|
|
if (inp) {
|
|
SCTP_INP_WLOCK(inp);
|
|
SCTP_INP_DECR_REF(inp);
|
|
SCTP_INP_WUNLOCK(inp);
|
|
}
|
|
goto out;
|
|
}
|
|
error = SYSCTL_OUT(req, inp->sctp_socket->so_cred,
|
|
sizeof(struct ucred));
|
|
|
|
SCTP_TCB_UNLOCK (stcb);
|
|
out:
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
|
|
SYSCTL_PROC(_net_inet6_sctp6, OID_AUTO, getcred, CTLTYPE_OPAQUE|CTLFLAG_RW,
|
|
0, 0,
|
|
sctp6_getcred, "S,ucred", "Get the ucred of a SCTP6 connection");
|
|
|
|
#endif
|
|
|
|
/* This is the same as the sctp_abort() could be made common */
|
|
static int
|
|
sctp6_abort(struct socket *so)
|
|
{
|
|
int s;
|
|
struct sctp_inpcb *inp;
|
|
|
|
KASSERT(solocked(so));
|
|
|
|
s = splsoftnet();
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == 0)
|
|
return EINVAL; /* ??? possible? panic instead? */
|
|
soisdisconnected(so);
|
|
sctp_inpcb_free(inp, 1);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
sctp6_attach(struct socket *so, int proto)
|
|
{
|
|
struct in6pcb *inp6;
|
|
int error;
|
|
struct sctp_inpcb *inp;
|
|
|
|
sosetlock(so);
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp != NULL)
|
|
return EINVAL;
|
|
|
|
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
|
|
error = soreserve(so, sctp_sendspace, sctp_recvspace);
|
|
if (error)
|
|
return error;
|
|
}
|
|
error = sctp_inpcb_alloc(so);
|
|
if (error)
|
|
return error;
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
inp->sctp_flags |= SCTP_PCB_FLAGS_BOUND_V6; /* I'm v6! */
|
|
inp6 = (struct in6pcb *)inp;
|
|
|
|
inp->inp_vflag |= INP_IPV6;
|
|
if (ip6_v6only) {
|
|
inp6->in6p_flags |= IN6P_IPV6_V6ONLY;
|
|
}
|
|
so->so_send = sctp_sosend;
|
|
|
|
inp6->in6p_hops = -1; /* use kernel default */
|
|
inp6->in6p_cksum = -1; /* just to be sure */
|
|
#ifdef INET
|
|
/*
|
|
* XXX: ugly!!
|
|
* IPv4 TTL initialization is necessary for an IPv6 socket as well,
|
|
* because the socket may be bound to an IPv6 wildcard address,
|
|
* which may match an IPv4-mapped IPv6 address.
|
|
*/
|
|
inp->inp_ip_ttl = ip_defttl;
|
|
#endif
|
|
/*
|
|
* Hmm what about the IPSEC stuff that is missing here but
|
|
* in sctp_attach()?
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
sctp6_bind(struct socket *so, struct sockaddr *nam, struct lwp *l)
|
|
{
|
|
struct sctp_inpcb *inp;
|
|
struct in6pcb *inp6;
|
|
int error;
|
|
|
|
KASSERT(solocked(so));
|
|
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
|
|
inp6 = (struct in6pcb *)inp;
|
|
inp->inp_vflag &= ~INP_IPV4;
|
|
inp->inp_vflag |= INP_IPV6;
|
|
|
|
if (nam != NULL && (inp6->in6p_flags & IN6P_IPV6_V6ONLY) == 0) {
|
|
if (nam->sa_family == AF_INET) {
|
|
/* binding v4 addr to v6 socket, so reset flags */
|
|
inp->inp_vflag |= INP_IPV4;
|
|
inp->inp_vflag &= ~INP_IPV6;
|
|
} else {
|
|
struct sockaddr_in6 *sin6_p;
|
|
sin6_p = (struct sockaddr_in6 *)nam;
|
|
|
|
if (IN6_IS_ADDR_UNSPECIFIED(&sin6_p->sin6_addr)) {
|
|
inp->inp_vflag |= INP_IPV4;
|
|
}
|
|
else if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) {
|
|
struct sockaddr_in sin;
|
|
in6_sin6_2_sin(&sin, sin6_p);
|
|
inp->inp_vflag |= INP_IPV4;
|
|
inp->inp_vflag &= ~INP_IPV6;
|
|
error = sctp_inpcb_bind(so, (struct sockaddr *)&sin, l);
|
|
return error;
|
|
}
|
|
}
|
|
} else if (nam != NULL) {
|
|
/* IPV6_V6ONLY socket */
|
|
if (nam->sa_family == AF_INET) {
|
|
/* can't bind v4 addr to v6 only socket! */
|
|
return EINVAL;
|
|
} else {
|
|
struct sockaddr_in6 *sin6_p;
|
|
sin6_p = (struct sockaddr_in6 *)nam;
|
|
|
|
if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr))
|
|
/* can't bind v4-mapped addrs either! */
|
|
/* NOTE: we don't support SIIT */
|
|
return EINVAL;
|
|
}
|
|
}
|
|
error = sctp_inpcb_bind(so, nam, l);
|
|
return error;
|
|
}
|
|
|
|
/*This could be made common with sctp_detach() since they are identical */
|
|
static int
|
|
sctp6_detach(struct socket *so)
|
|
{
|
|
struct sctp_inpcb *inp;
|
|
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
|
|
if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
|
|
(so->so_rcv.sb_cc > 0))
|
|
sctp_inpcb_free(inp, 1);
|
|
else
|
|
sctp_inpcb_free(inp, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
sctp6_disconnect(struct socket *so)
|
|
{
|
|
struct sctp_inpcb *inp;
|
|
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == NULL) {
|
|
return (ENOTCONN);
|
|
}
|
|
if (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
|
|
if (LIST_EMPTY(&inp->sctp_asoc_list)) {
|
|
/* No connection */
|
|
return (ENOTCONN);
|
|
} else {
|
|
int some_on_streamwheel = 0;
|
|
struct sctp_association *asoc;
|
|
struct sctp_tcb *stcb;
|
|
|
|
stcb = LIST_FIRST(&inp->sctp_asoc_list);
|
|
if (stcb == NULL) {
|
|
return (EINVAL);
|
|
}
|
|
asoc = &stcb->asoc;
|
|
if (!TAILQ_EMPTY(&asoc->out_wheel)) {
|
|
/* Check to see if some data queued */
|
|
struct sctp_stream_out *outs;
|
|
TAILQ_FOREACH(outs, &asoc->out_wheel,
|
|
next_spoke) {
|
|
if (!TAILQ_EMPTY(&outs->outqueue)) {
|
|
some_on_streamwheel = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (TAILQ_EMPTY(&asoc->send_queue) &&
|
|
TAILQ_EMPTY(&asoc->sent_queue) &&
|
|
(some_on_streamwheel == 0)) {
|
|
/* nothing queued to send, so I'm done... */
|
|
if ((SCTP_GET_STATE(asoc) !=
|
|
SCTP_STATE_SHUTDOWN_SENT) &&
|
|
(SCTP_GET_STATE(asoc) !=
|
|
SCTP_STATE_SHUTDOWN_ACK_SENT)) {
|
|
/* only send SHUTDOWN the first time */
|
|
#ifdef SCTP_DEBUG
|
|
if (sctp_debug_on & SCTP_DEBUG_OUTPUT4) {
|
|
printf("%s:%d sends a shutdown\n",
|
|
__FILE__,
|
|
__LINE__
|
|
);
|
|
}
|
|
#endif
|
|
sctp_send_shutdown(stcb, stcb->asoc.primary_destination);
|
|
sctp_chunk_output(stcb->sctp_ep, stcb, 1);
|
|
asoc->state = SCTP_STATE_SHUTDOWN_SENT;
|
|
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
|
|
stcb->sctp_ep, stcb,
|
|
asoc->primary_destination);
|
|
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
|
|
stcb->sctp_ep, stcb,
|
|
asoc->primary_destination);
|
|
}
|
|
} else {
|
|
/*
|
|
* we still got (or just got) data to send,
|
|
* so set SHUTDOWN_PENDING
|
|
*/
|
|
/*
|
|
* XXX sockets draft says that MSG_EOF should
|
|
* be sent with no data. currently, we will
|
|
* allow user data to be sent first and move
|
|
* to SHUTDOWN-PENDING
|
|
*/
|
|
asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
|
|
}
|
|
return (0);
|
|
}
|
|
} else {
|
|
/* UDP model does not support this */
|
|
return EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int
|
|
sctp6_recvoob(struct socket *so, struct mbuf *m, int flags)
|
|
{
|
|
KASSERT(solocked(so));
|
|
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
sctp6_send(struct socket *so, struct mbuf *m, struct sockaddr *nam,
|
|
struct mbuf *control, struct lwp *l)
|
|
{
|
|
struct sctp_inpcb *inp;
|
|
struct in6pcb *inp6;
|
|
#ifdef INET
|
|
struct sockaddr_in6 *sin6;
|
|
#endif /* INET */
|
|
/* No SPL needed since sctp_output does this */
|
|
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == NULL) {
|
|
if (control) {
|
|
m_freem(control);
|
|
control = NULL;
|
|
}
|
|
m_freem(m);
|
|
return EINVAL;
|
|
}
|
|
inp6 = (struct in6pcb *)inp;
|
|
/* For the TCP model we may get a NULL addr, if we
|
|
* are a connected socket thats ok.
|
|
*/
|
|
if ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) &&
|
|
(nam == NULL)) {
|
|
goto connected_type;
|
|
}
|
|
if (nam == NULL) {
|
|
m_freem(m);
|
|
if (control) {
|
|
m_freem(control);
|
|
control = NULL;
|
|
}
|
|
return (EDESTADDRREQ);
|
|
}
|
|
|
|
#ifdef INET
|
|
sin6 = (struct sockaddr_in6 *)nam;
|
|
if (inp6->in6p_flags & IN6P_IPV6_V6ONLY) {
|
|
/*
|
|
* if IPV6_V6ONLY flag, we discard datagrams
|
|
* destined to a v4 addr or v4-mapped addr
|
|
*/
|
|
if (nam->sa_family == AF_INET) {
|
|
return EINVAL;
|
|
}
|
|
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
|
|
if (!ip6_v6only) {
|
|
struct sockaddr_in sin;
|
|
/* convert v4-mapped into v4 addr and send */
|
|
in6_sin6_2_sin(&sin, sin6);
|
|
return sctp_send(so, m, (struct sockaddr *)&sin,
|
|
control, l);
|
|
} else {
|
|
/* mapped addresses aren't enabled */
|
|
return EINVAL;
|
|
}
|
|
}
|
|
#endif /* INET */
|
|
connected_type:
|
|
/* now what about control */
|
|
if (control) {
|
|
if (inp->control) {
|
|
printf("huh? control set?\n");
|
|
m_freem(inp->control);
|
|
inp->control = NULL;
|
|
}
|
|
inp->control = control;
|
|
}
|
|
/* add it in possibly */
|
|
if ((inp->pkt) &&
|
|
(inp->pkt->m_flags & M_PKTHDR)) {
|
|
struct mbuf *x;
|
|
int c_len;
|
|
|
|
c_len = 0;
|
|
/* How big is it */
|
|
for (x=m;x;x = x->m_next) {
|
|
c_len += x->m_len;
|
|
}
|
|
inp->pkt->m_pkthdr.len += c_len;
|
|
}
|
|
/* Place the data */
|
|
if (inp->pkt) {
|
|
inp->pkt_last->m_next = m;
|
|
inp->pkt_last = m;
|
|
} else {
|
|
inp->pkt_last = inp->pkt = m;
|
|
}
|
|
if ((so->so_state & SS_MORETOCOME) == 0) {
|
|
/*
|
|
* note with the current version this code will only be
|
|
* used by OpenBSD, NetBSD and FreeBSD have methods for
|
|
* re-defining sosend() to use sctp_sosend(). One can
|
|
* optionaly switch back to this code (by changing back
|
|
* the defininitions but this is not advisable.
|
|
*/
|
|
int ret;
|
|
ret = sctp_output(inp, inp->pkt , nam, inp->control, l, 0);
|
|
inp->pkt = NULL;
|
|
inp->control = NULL;
|
|
return (ret);
|
|
} else {
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
static int
|
|
sctp6_sendoob(struct socket *so, struct mbuf *m, struct mbuf *control)
|
|
{
|
|
KASSERT(solocked(so));
|
|
|
|
if (m)
|
|
m_freem(m);
|
|
if (control)
|
|
m_freem(control);
|
|
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
sctp6_connect(struct socket *so, struct sockaddr *nam, struct lwp *l)
|
|
{
|
|
int error = 0;
|
|
struct sctp_inpcb *inp;
|
|
struct in6pcb *inp6;
|
|
struct sctp_tcb *stcb;
|
|
#ifdef INET
|
|
struct sockaddr_in6 *sin6;
|
|
struct sockaddr_storage ss;
|
|
#endif /* INET */
|
|
|
|
inp6 = (struct in6pcb *)so->so_pcb;
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == 0) {
|
|
return (ECONNRESET); /* I made the same as TCP since
|
|
* we are not setup? */
|
|
}
|
|
SCTP_ASOC_CREATE_LOCK(inp);
|
|
SCTP_INP_RLOCK(inp);
|
|
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
|
|
SCTP_PCB_FLAGS_UNBOUND) {
|
|
/* Bind a ephemeral port */
|
|
SCTP_INP_RUNLOCK(inp);
|
|
error = sctp6_bind(so, NULL, l);
|
|
if (error) {
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
|
|
return (error);
|
|
}
|
|
SCTP_INP_RLOCK(inp);
|
|
}
|
|
|
|
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
|
|
(inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
|
|
/* We are already connected AND the TCP model */
|
|
SCTP_INP_RUNLOCK(inp);
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
return (EADDRINUSE);
|
|
}
|
|
|
|
#ifdef INET
|
|
sin6 = (struct sockaddr_in6 *)nam;
|
|
if (inp6->in6p_flags & IN6P_IPV6_V6ONLY) {
|
|
/*
|
|
* if IPV6_V6ONLY flag, ignore connections
|
|
* destined to a v4 addr or v4-mapped addr
|
|
*/
|
|
if (nam->sa_family == AF_INET) {
|
|
SCTP_INP_RUNLOCK(inp);
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
return EINVAL;
|
|
}
|
|
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
|
|
SCTP_INP_RUNLOCK(inp);
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
|
|
if (!ip6_v6only) {
|
|
/* convert v4-mapped into v4 addr */
|
|
in6_sin6_2_sin((struct sockaddr_in *)&ss, sin6);
|
|
nam = (struct sockaddr *)&ss;
|
|
} else {
|
|
/* mapped addresses aren't enabled */
|
|
SCTP_INP_RUNLOCK(inp);
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
return EINVAL;
|
|
}
|
|
}
|
|
#endif /* INET */
|
|
|
|
/* Now do we connect? */
|
|
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
|
|
stcb = LIST_FIRST(&inp->sctp_asoc_list);
|
|
if (stcb) {
|
|
SCTP_TCB_UNLOCK (stcb);
|
|
}
|
|
SCTP_INP_RUNLOCK(inp);
|
|
} else {
|
|
SCTP_INP_RUNLOCK(inp);
|
|
SCTP_INP_WLOCK(inp);
|
|
SCTP_INP_INCR_REF(inp);
|
|
SCTP_INP_WUNLOCK(inp);
|
|
stcb = sctp_findassociation_ep_addr(&inp, nam, NULL, NULL, NULL);
|
|
if (stcb == NULL) {
|
|
SCTP_INP_WLOCK(inp);
|
|
SCTP_INP_DECR_REF(inp);
|
|
SCTP_INP_WUNLOCK(inp);
|
|
}
|
|
}
|
|
|
|
if (stcb != NULL) {
|
|
/* Already have or am bring up an association */
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
SCTP_TCB_UNLOCK (stcb);
|
|
return (EALREADY);
|
|
}
|
|
/* We are GOOD to go */
|
|
stcb = sctp_aloc_assoc(inp, nam, 1, &error, 0);
|
|
SCTP_ASOC_CREATE_UNLOCK(inp);
|
|
if (stcb == NULL) {
|
|
/* Gak! no memory */
|
|
return (error);
|
|
}
|
|
if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
|
|
stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
|
|
/* Set the connected flag so we can queue data */
|
|
soisconnecting(so);
|
|
}
|
|
stcb->asoc.state = SCTP_STATE_COOKIE_WAIT;
|
|
SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
|
|
sctp_send_initiate(inp, stcb);
|
|
SCTP_TCB_UNLOCK (stcb);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
sctp6_connect2(struct socket *so, struct socket *so2)
|
|
{
|
|
KASSERT(solocked(so));
|
|
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
sctp6_getaddr(struct socket *so, struct sockaddr *nam)
|
|
{
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam;
|
|
struct sctp_inpcb *inp;
|
|
int error;
|
|
|
|
/*
|
|
* Do the malloc first in case it blocks.
|
|
*/
|
|
memset(sin6, 0, sizeof(*sin6));
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_len = sizeof(*sin6);
|
|
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == NULL) {
|
|
return ECONNRESET;
|
|
}
|
|
|
|
sin6->sin6_port = inp->sctp_lport;
|
|
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
|
|
/* For the bound all case you get back 0 */
|
|
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
|
|
struct sctp_tcb *stcb;
|
|
const struct sockaddr_in6 *sin_a6;
|
|
struct sctp_nets *net;
|
|
int fnd;
|
|
|
|
stcb = LIST_FIRST(&inp->sctp_asoc_list);
|
|
if (stcb == NULL) {
|
|
goto notConn6;
|
|
}
|
|
fnd = 0;
|
|
sin_a6 = NULL;
|
|
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
|
|
sin_a6 = (const struct sockaddr_in6 *)rtcache_getdst(&net->ro);
|
|
if (sin_a6->sin6_family == AF_INET6) {
|
|
fnd = 1;
|
|
break;
|
|
}
|
|
}
|
|
if ((!fnd) || (sin_a6 == NULL)) {
|
|
/* punt */
|
|
goto notConn6;
|
|
}
|
|
sin6->sin6_addr = sctp_ipv6_source_address_selection(
|
|
inp, stcb, &net->ro, net, 0);
|
|
|
|
} else {
|
|
/* For the bound all case you get back 0 */
|
|
notConn6:
|
|
memset(&sin6->sin6_addr, 0, sizeof(sin6->sin6_addr));
|
|
}
|
|
} else {
|
|
/* Take the first IPv6 address in the list */
|
|
struct sctp_laddr *laddr;
|
|
int fnd = 0;
|
|
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
|
|
if (laddr->ifa->ifa_addr->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sin_a;
|
|
sin_a = (struct sockaddr_in6 *)laddr->ifa->ifa_addr;
|
|
sin6->sin6_addr = sin_a->sin6_addr;
|
|
fnd = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!fnd) {
|
|
return ENOENT;
|
|
}
|
|
}
|
|
/* Scoping things for v6 */
|
|
if ((error = sa6_recoverscope(sin6)) != 0)
|
|
return (error);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
sctp6_peeraddr(struct socket *so, struct sockaddr *nam)
|
|
{
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam;
|
|
int fnd, error;
|
|
const struct sockaddr_in6 *sin_a6;
|
|
struct sctp_inpcb *inp;
|
|
struct sctp_tcb *stcb;
|
|
struct sctp_nets *net;
|
|
/*
|
|
* Do the malloc first in case it blocks.
|
|
*/
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0) {
|
|
/* UDP type and listeners will drop out here */
|
|
return (ENOTCONN);
|
|
}
|
|
memset(sin6, 0, sizeof(*sin6));
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_len = sizeof(*sin6);
|
|
|
|
/* We must recapture incase we blocked */
|
|
inp = (struct sctp_inpcb *)so->so_pcb;
|
|
if (inp == NULL) {
|
|
return ECONNRESET;
|
|
}
|
|
stcb = LIST_FIRST(&inp->sctp_asoc_list);
|
|
if (stcb == NULL) {
|
|
return ECONNRESET;
|
|
}
|
|
fnd = 0;
|
|
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
|
|
sin_a6 = (const struct sockaddr_in6 *)rtcache_getdst(&net->ro);
|
|
if (sin_a6->sin6_family == AF_INET6) {
|
|
fnd = 1;
|
|
sin6->sin6_port = stcb->rport;
|
|
sin6->sin6_addr = sin_a6->sin6_addr;
|
|
break;
|
|
}
|
|
}
|
|
if (!fnd) {
|
|
/* No IPv4 address */
|
|
return ENOENT;
|
|
}
|
|
if ((error = sa6_recoverscope(sin6)) != 0)
|
|
return (error);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
sctp6_sockaddr(struct socket *so, struct sockaddr *nam)
|
|
{
|
|
struct in6pcb *inp6 = sotoin6pcb(so);
|
|
int error;
|
|
|
|
if (inp6 == NULL)
|
|
return EINVAL;
|
|
|
|
/* allow v6 addresses precedence */
|
|
error = sctp6_getaddr(so, nam);
|
|
if (error) {
|
|
/* try v4 next if v6 failed */
|
|
error = sctp_sockaddr(so, nam);
|
|
if (error) {
|
|
return (error);
|
|
}
|
|
|
|
/* if I'm V6ONLY, convert it to v4-mapped */
|
|
if (inp6->in6p_flags & IN6P_IPV6_V6ONLY) {
|
|
struct sockaddr_in6 sin6;
|
|
in6_sin_2_v4mapsin6((struct sockaddr_in *)nam, &sin6);
|
|
memcpy(nam, &sin6, sizeof(struct sockaddr_in6));
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
sctp6_getpeeraddr(struct socket *so, struct sockaddr *nam)
|
|
{
|
|
struct in6pcb *inp6 = sotoin6pcb(so);
|
|
int error;
|
|
|
|
if (inp6 == NULL)
|
|
return EINVAL;
|
|
|
|
/* allow v6 addresses precedence */
|
|
error = sctp6_peeraddr(so, nam);
|
|
if (error) {
|
|
/* try v4 next if v6 failed */
|
|
error = sctp_peeraddr(so, nam);
|
|
if (error) {
|
|
return (error);
|
|
}
|
|
/* if I'm V6ONLY, convert it to v4-mapped */
|
|
if ((inp6->in6p_flags & IN6P_IPV6_V6ONLY)) {
|
|
struct sockaddr_in6 sin6;
|
|
in6_sin_2_v4mapsin6((struct sockaddr_in *)addr, &sin6);
|
|
memcpy(addr, &sin6, sizeof(struct sockaddr_in6));
|
|
}
|
|
}
|
|
return error;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
sctp6_ioctl(struct socket *so, u_long cmd, void *nam, struct ifnet *ifp)
|
|
{
|
|
int error = 0;
|
|
int family;
|
|
|
|
family = so->so_proto->pr_domain->dom_family;
|
|
switch (family) {
|
|
#ifdef INET
|
|
case PF_INET:
|
|
error = in_control(so, cmd, nam, ifp);
|
|
break;
|
|
#endif
|
|
#ifdef INET6
|
|
case PF_INET6:
|
|
error = in6_control(so, cmd, nam, ifp);
|
|
break;
|
|
#endif
|
|
default:
|
|
error = EAFNOSUPPORT;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
sctp6_accept(struct socket *so, struct sockaddr *nam)
|
|
{
|
|
KASSERT(solocked(so));
|
|
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
sctp6_stat(struct socket *so, struct stat *ub)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
sctp6_listen(struct socket *so, struct lwp *l)
|
|
{
|
|
return sctp_listen(so, l);
|
|
}
|
|
|
|
static int
|
|
sctp6_shutdown(struct socket *so)
|
|
{
|
|
return sctp_shutdown(so);
|
|
}
|
|
|
|
static int
|
|
sctp6_rcvd(struct socket *so, int flags, struct lwp *l)
|
|
{
|
|
KASSERT(solocked(so));
|
|
|
|
return sctp_rcvd(so, flags, l);
|
|
}
|
|
|
|
static int
|
|
sctp6_purgeif(struct socket *so, struct ifnet *ifp)
|
|
{
|
|
struct ifaddr *ifa;
|
|
IFADDR_READER_FOREACH(ifa, ifp) {
|
|
if (ifa->ifa_addr->sa_family == PF_INET6) {
|
|
sctp_delete_ip_address(ifa);
|
|
}
|
|
}
|
|
|
|
mutex_enter(softnet_lock);
|
|
in6_purgeif(ifp);
|
|
mutex_exit(softnet_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
PR_WRAP_USRREQS(sctp6)
|
|
#define sctp6_attach sctp6_attach_wrapper
|
|
#define sctp6_detach sctp6_detach_wrapper
|
|
#define sctp6_accept sctp6_accept_wrapper
|
|
#define sctp6_bind sctp6_bind_wrapper
|
|
#define sctp6_listen sctp6_listen_wrapper
|
|
#define sctp6_connect sctp6_connect_wrapper
|
|
#define sctp6_connect2 sctp6_connect2_wrapper
|
|
#define sctp6_disconnect sctp6_disconnect_wrapper
|
|
#define sctp6_shutdown sctp6_shutdown_wrapper
|
|
#define sctp6_abort sctp6_abort_wrapper
|
|
#define sctp6_ioctl sctp6_ioctl_wrapper
|
|
#define sctp6_stat sctp6_stat_wrapper
|
|
#define sctp6_peeraddr sctp6_peeraddr_wrapper
|
|
#define sctp6_sockaddr sctp6_sockaddr_wrapper
|
|
#define sctp6_rcvd sctp6_rcvd_wrapper
|
|
#define sctp6_recvoob sctp6_recvoob_wrapper
|
|
#define sctp6_send sctp6_send_wrapper
|
|
#define sctp6_sendoob sctp6_sendoob_wrapper
|
|
#define sctp6_purgeif sctp6_purgeif_wrapper
|
|
|
|
const struct pr_usrreqs sctp6_usrreqs = {
|
|
.pr_attach = sctp6_attach,
|
|
.pr_detach = sctp6_detach,
|
|
.pr_accept = sctp6_accept,
|
|
.pr_bind = sctp6_bind,
|
|
.pr_listen = sctp6_listen,
|
|
.pr_connect = sctp6_connect,
|
|
.pr_connect2 = sctp6_connect2,
|
|
.pr_disconnect = sctp6_disconnect,
|
|
.pr_shutdown = sctp6_shutdown,
|
|
.pr_abort = sctp6_abort,
|
|
.pr_ioctl = sctp6_ioctl,
|
|
.pr_stat = sctp6_stat,
|
|
.pr_peeraddr = sctp6_peeraddr,
|
|
.pr_sockaddr = sctp6_sockaddr,
|
|
.pr_rcvd = sctp6_rcvd,
|
|
.pr_recvoob = sctp6_recvoob,
|
|
.pr_send = sctp6_send,
|
|
.pr_sendoob = sctp6_sendoob,
|
|
.pr_purgeif = sctp6_purgeif,
|
|
};
|